Constant Throughput Timer

[Coret Bob <b....@pinkroccade.com>]

Hi,

The specification of my performancetest states that a particul page has to have a specific maximum responsetime when 50 pages per minute are requested. So I made the following Test Plan to test this in a testrun of 1 hour:

Testplan 
+ Thread Group (Number of Threads:50, Loop Count: Forever, 1 Hour run via Scheduler)
  + HTTP Request (with Follow Redirects, I know this request gets an 403 which is followed, so in fact two requests are done)
    +  Constant Throughput Timer (Target throughput in samples per minute: 50)
  + Aggregate Report
 
I had expected to see the count for the HTTP Request to be around 3000 (testrun of 60 minutes, 50 samples per minute), but in fact it was around 7500. Is this due to the fact that the HTTP Request in fact gets 2 pages (Follow Redirects). Or is the mix of number of threads and throughput incorrect?

Thanks,
Bob

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Re: Constant Throughput Timer

[sebb <se...@gmail.com>]

On Thu, 2 Dec 2004 15:22:19 +0100, Coret Bob <b....@pinkroccade.com> wrote:
> Hi,
> 
> The specification of my performancetest states that a particul page has to have a specific maximum responsetime when 50 pages per minute are requested. So I made the following Test Plan to test this in a testrun of 1 hour:
> 
> Testplan
> + Thread Group (Number of Threads:50, Loop Count: Forever, 1 Hour run via Scheduler)
>   + HTTP Request (with Follow Redirects, I know this request gets an 403 which is followed, so in fact two requests are done)
>     +  Constant Throughput Timer (Target throughput in samples per minute: 50)
>   + Aggregate Report
> 
> I had expected to see the count for the HTTP Request to be around 3000 (testrun of 60 minutes, 50 samples per minute), but in fact it was around 7500. Is this due to the fact that the HTTP Request in fact gets 2 pages (Follow Redirects). Or is the mix of number of threads and throughput incorrect?
> 

We use the Throughput timer all the time, and it works fine for us.

There's not really enough information to tell what is happening ...

Does the initial page actually do a redirect?
If so, it will be counted as a sample. 
You can eliminate this from the Test by selecting "Redirect
automatically", or by coding the test to load only the redirected
page.

How long did the test actually last?

S.

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